Fe(II/III) adsorption onto styrene/divinyl benzene based polymers

Ahmetli, Gülnare; Tarlan, Esra

doi:10.1002/app.25982

Cited by 9 publications

(10 citation statements)

References 12 publications

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“…Some organic polymer sorbents, Amberlite XAD, Lewatit, Separon, Polysorb are well known from the literature 10. Recently, styrene‐divinylbenzene‐based insoluble resins, gelatinous and macroporous copolymers and crosslinked polymer adsorbents gained vital importance because of their ability to remove high quantities of ions 11, 12…”

Section: Introductionmentioning

confidence: 99%

“…10 Recently, styrenedivinylbenzene-based insoluble resins, gelatinous and macroporous copolymers and crosslinked polymer adsorbents gained vital importance because of their ability to remove high quantities of ions. 11,12 Therefore, the aims of this study were to obtain IHAs from Beysehir and Ermenek low grade lignites (from Central Anatolian region, Konya-Turkey), to synthesize SDB based terpolymers, and to investigate the effectiveness of all these polymers in Pb(II) adsorption. The performance of the polymers in Pb adsorption were compared with the well known, widely used commercial adsorbent activated carbon (AC).…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Pb(II) adsorption onto natural and synthetic polymers

Ahmetli

Yel

Deveci

et al. 2011

J of Applied Polymer Sci

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Adsorption of toxic metal ion Pb(II) onto two different insoluble humic acids (IHAs) obtained from Beysehir (BIHA) and Ermenek (EIHA) low grade lignites and two synthesized terpolymers: styrene‐divinylbenzene‐methacrylic acid (SDBM) and styrene‐divinylbenzene allylmethacrylate (SDBAM) were investigated and compared with commercial activated carbon (AC). The synthesized polymers were characterized by FTIR. Effects of pH (in neutral and acidic range), time, and initial metal concentration on the effectiveness of IHAs and terpolymers were determined. All synthesized adsorbents could adsorb Pb(II) with much higher capacity at half of the retention of AC in acidic medium. The adsorption capacities varied in the range of 51–76 mg g−1. The affinity order of polymers in acidic medium for Pb(II) ions was observed as: SDBAM>SDBM>BIHA≈EIHA>AC. IHAs fit Freundlich model while SDB polymers were fitting Langmuir isotherm. The maximum adsorption capacities in neutral medium were 48 mg g−1 for SDBM and 15 mg g−1 for BIHA. Desorption studies for the polymer of highest performance indicated that about 90% desorption was achieved at 5 h by using EDTA regenerant solution. The polymer can be used repeatedly in Pb(II) adsorption with close capacities to initial use. The higher selectivity of SDBAM to Pb(II) ions in multimetal solution was also indicated in the study. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of Pb(II) adsorption onto natural and synthetic polymers

Ahmetli

Yel

Deveci

et al. 2011

J of Applied Polymer Sci

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“…Iron is a common contaminant in natural waters [17], mining effluents [18], hydrometallurgical solutions [19] and a range of other industrial wastes [20]. Demineralization of water and wastewater solutions is widely practiced in industry, usually with a combination of cation and anion resins to remove the dissolved ions [21].…”

Section: Introductionmentioning

confidence: 99%

Equilibrium and column studies of iron exchange with strong acid cation resin

Millar

Schot

Couperthwaite

et al. 2015

Journal of Environmental Chemical Engineering

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A B S T R A C TThe exchange of iron species from iron(III) chloride solutions with a strong acid cation resin has been investigated in relation to a variety of water and wastewater applications. A detailed equilibrium isotherm analysis was conducted wherein models such as Langmuir-Vageler, Competitive Langmuir, Freundlich, Temkin, Dubinin-Astakhov, Sips and Brouers-Sotolongo were applied to the experimental data. An important conclusion was that both the bottle-point method chosen and solution normality used to generate the ion exchange equilibrium isotherm influenced which sorption model fitted the isotherm profiles optimally. Invariably, the calculated value for the maximum loading of iron on strong acid cation resin was substantially higher than the value of 47.1 g/kg of resin which would occur if one Fe 3 + ion exchanged for three "H + " sites on the resin surface. Consequently, it was suggested that above pH 1, various iron complexes sorbed to the resin in a manner which required less than 3 sites per iron moiety. Column trials suggested that the iron loading was 86.6 g/kg of resin when 1342 mg/L Fe(III) ions in water were flowed at 31.7 BV/h. Regeneration with 5-10% HCl solutions reclaimed approximately 90% of exchange sites.2014 Elsevier Ltd. All rights reserved. IntroductionMetal pollution of our water resources remains a major concern [1-3]. Several methods have been employed to remediate contaminated solutions including precipitation [4], coagulationflocculation [5], adsorption [6-8], ion exchange [9,10], membrane filtration [11], flotation [12,13] and electrochemical means [14]. Physico-chemical techniques are attractive due to a variety of reasons such as process economics, reliability and ease of use [15]. Ion exchange is of particular interest as not only can the metals potentially be recovered but also the technology is well developed, simple and effective [16]. Iron is a common contaminant in natural waters [17], mining effluents [18], hydrometallurgical solutions [19] and a range of other industrial wastes [20]. Demineralization of water and wastewater solutions is widely practiced in industry, usually with a combination of cation and anion resins to remove the dissolved ions [21]. Kaya et al. [22] have shown that the presence of iron even at low concentration can significantly reduce the operating capacity of synthetic strong acid cation resins. Victor-Ortega Abbreviations: A, Temkin isotherm parameter (L/mmol or L/mg); a s , Sips equilibrium isotherm coefficient; a, exponent which represents the inherent energy heterogeneity of the sorbent surface; AIC, Akaike information criterion; ARE, average relative error; b T , Temkin constant related to the heat of adsorption (J/mol); BV, bed volumes; C e , equilibrium concentration of iron ions in solution (mg/L); C o , initial concentration of iron ions in solution (mg/L); e, adsorption potential (J/mol); E, energy of adsorption (J/mol); eq, equivalents; EABS, sum of the absolute errors; HYBRID, hybrid fractional error function; K CL , Competitive Lan...

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“…11 Recently, styrenedivinylbenzene-based insoluble resins (e.g., Lewatit), gelatinous and macroporous copolymers, and crosslinked polymer adsorbents gained vital importance because of their ability to remove high quantities of ions. 12,13 The strong acid resins are the most employed ion exchangers in industrial operations for cation separations from an aqueous stream. The polystyrenic matrix offers a remarkable chemical and physical stability for temperatures of interest in treating aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and metal ions sorption properties of styrene‐based polymers

Deveci

Ahmetli

Ersöz

et al. 2009

J of Applied Polymer Sci

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Atactic polystyrene (PS) was chemically modified with maleic (MAH), succinic (SAH), and phtalic (PhAH) anhydrides. Styrene was copolymerized with acrylic (AA) and methacrylic acids (MA). Amount of carboxyl groups (%) bound to polymers was determined in the range of 6.9-25.9. Different modified polystyrenes (MPS) and styrene copolymers were used in the experiments to study Cu(II) and Zn(II) ions adsorption probability and their comparison. Sorption capacity of the polymers for the metal ions were investigated in aqueous media containing different amounts of these ions (5-40 mg/L) and at different pH values (2.0-6.0). Adsorption behavior of heavy metal ions could be modeled using both the Langmuir and Freundlich isotherms. It was found that the adsorption capacity is highest at pH value of 6, whereas it decreases as the pH value decreases at temperature 25C AE 1 C for 240 min. The results obtained from the adsorption capacity experiments for Cu(II) and Zn(II) ions were 3. 47-5.45 and 5.42-6.85 mg/g, respectively. The affinity order of polymers for both metal ions was observed as follows: SMAC > SAAC > MPS with MAH > MPS with SAH > MPS with PhAH. The maximum adsorption capacities of SMAC were 6.85mg/g for Zn(II) and 5.45 mg/g for Cu(II).

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Fe(II/III) adsorption onto styrene/divinyl benzene based polymers

Cited by 9 publications

References 12 publications

Investigation of Pb(II) adsorption onto natural and synthetic polymers

Investigation of Pb(II) adsorption onto natural and synthetic polymers

Equilibrium and column studies of iron exchange with strong acid cation resin

Synthesis and metal ions sorption properties of styrene‐based polymers

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